public UDPSession(ConnectionKey parKey, IPAddress parAdapterIP, byte[] parBroadcastIP)
: base(parKey, parAdapterIP)
{
broadcastAddr = parBroadcastIP;
lock (deathClock)
{
deathClock.Start();
}
}
public Session(ConnectionKey parKey, IPAddress parAdapterIP)
{
adapterIP = parAdapterIP;
Key = parKey;
}
public TCPSession(ConnectionKey parKey, IPAddress parAdapterIP)
: base(parKey, parAdapterIP)
{
}
public ICMPSession(ConnectionKey parKey, ConcurrentDictionary<ConnectionKey, Session> parConnections)
: base(parKey, IPAddress.Any)
{
connections = parConnections;
}
public override bool Send(IPPayload payload)
{
ICMP icmp = (ICMP)payload;
switch (icmp.Type)
{
case 8: //Echo
//Code == zero
Log_Verb("Send Ping");
lock (sentry)
{
open += 1;
}
PingData pd;
pd.Data = icmp.Data;
pd.HeaderData = icmp.HeaderData;
Ping nPing = new Ping();
nPing.PingCompleted += PingCompleate;
lock (sentry)
{
pings.Add(nPing);
}
nPing.SendAsync(new IPAddress(DestIP), pd);
System.Threading.Thread.Sleep(1); //Hack Fix
break;
case 3: //
switch (icmp.Code)
{
case 3:
Log_Error("Recived Packet Rejected, Port Closed");
IPPacket retPkt = new IPPacket(icmp);
byte[] srvIP = retPkt.SourceIP;
byte prot = retPkt.Protocol;
UInt16 srvPort = 0;
UInt16 ps2Port = 0;
switch (prot)
{
case (byte)IPType.TCP:
TCP tcp = (TCP)retPkt.Payload;
srvPort = tcp.SourcePort;
ps2Port = tcp.DestinationPort;
break;
case (byte)IPType.UDP:
UDP udp = (UDP)retPkt.Payload;
srvPort = udp.SourcePort;
ps2Port = udp.DestinationPort;
break;
}
ConnectionKey Key = new ConnectionKey();
Key.IP0 = srvIP[0]; Key.IP1 = srvIP[1]; Key.IP2 = srvIP[2]; Key.IP3 = srvIP[3];
Key.Protocol = prot;
Key.PS2Port = ps2Port;
Key.SRVPort = srvPort;
Session s;
connections.TryGetValue(Key, out s);
if (s != null)
{
s.Reset();
Log_Info("Reset Rejected Connection");
}
else
{
Log_Error("Failed To Reset Rejected Connection");
}
break;
default:
throw new NotImplementedException("Unsupported ICMP Code For Destination Unreachable" + icmp.Code);
}
break;
default:
throw new NotImplementedException("Unsupported ICMP Type" + icmp.Type);
}
return true;
}
